Datasheet LTC3675EUFF - Linear Technology IC, PMIC, 1 A, QFN-44 — Ficha de datos

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Manufacturer: Linear Technology

Description: IC, PMIC, 1 A, QFN-44

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LTC3675 7-Channel Configurable High Power PMIC FEATURES
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DESCRIPTION
The LTC®3675 is a digitally programmable high efficiency multioutput power supply plus dual string LED driver IC optimized for high power single cell Li-Ion/Polymer applications.

The DC/DCs consist of four synchronous buck converters (1A/1A/500mA/500mA), one synchronous boost DC/DC (1A), and one buck-boost DC/DC (1A) all powered from a 2.7V to 5.5V input. The 40V LED driver can regulate up to 25mA of current through two LED strings with up to 10 LEDs each. The LED driver may also be configured as a general purpose high voltage boost converter. DC/DC enables, output voltages, switch slew rates and operating modes may all be independently programmed over I2C or used in standalone mode via simple I/O and power-up defaults. The buck DC/DCs may be used independently or paralleled to achieve higher output currents with a shared inductor. LED enable, 60dB brightness control and up/down gradation are p

Specifications:

• Number of LDO Regulators: 1
• Number of Pins: 44
• Number of Regulated Outputs: 7
• Number of Step-Down DC - DC Converters: 4
• Operating Temperature Range: -40°C to +125°C
• Package / Case: QFN
• Supply Voltage: 5.5 V

RoHS: Yes